{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53601", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53601", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-10-04T15:44:12.477Z", "updatedAt": "2026-05-11T19:48:18.942Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "bonding: do not assume skb mac_header is set", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: do not assume skb mac_header is set\n\nDrivers must not assume in their ndo_start_xmit() that\nskbs have their mac_header set. skb->data is all what is needed.\n\nbonding seems to be one of the last offender as caught by syzbot:\n\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 skb_mac_offset include/linux/skbuff.h:2913 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 __bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]\nWARNING: CPU: 1 PID: 12155 at include/linux/skbuff.h:2907 bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470\nModules linked in:\nCPU: 1 PID: 12155 Comm: syz-executor.3 Not tainted 6.1.30-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023\nRIP: 0010:skb_mac_header include/linux/skbuff.h:2907 [inline]\nRIP: 0010:skb_mac_offset include/linux/skbuff.h:2913 [inline]\nRIP: 0010:bond_xmit_hash drivers/net/bonding/bond_main.c:4170 [inline]\nRIP: 0010:bond_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5149 [inline]\nRIP: 0010:bond_3ad_xor_xmit drivers/net/bonding/bond_main.c:5186 [inline]\nRIP: 0010:__bond_start_xmit drivers/net/bonding/bond_main.c:5442 [inline]\nRIP: 0010:bond_start_xmit+0x14ab/0x19d0 drivers/net/bonding/bond_main.c:5470\nCode: 8b 7c 24 30 e8 76 dd 1a 01 48 85 c0 74 0d 48 89 c3 e8 29 67 2e fe e9 15 ef ff ff e8 1f 67 2e fe e9 10 ef ff ff e8 15 67 2e fe <0f> 0b e9 45 f8 ff ff e8 09 67 2e fe e9 dc fa ff ff e8 ff 66 2e fe\nRSP: 0018:ffffc90002fff6e0 EFLAGS: 00010283\nRAX: ffffffff835874db RBX: 000000000000ffff RCX: 0000000000040000\nRDX: ffffc90004dcf000 RSI: 00000000000000b5 RDI: 00000000000000b6\nRBP: ffffc90002fff8b8 R08: ffffffff83586d16 R09: ffffffff83586584\nR10: 0000000000000007 R11: ffff8881599fc780 R12: ffff88811b6a7b7e\nR13: 1ffff110236d4f6f R14: ffff88811b6a7ac0 R15: 1ffff110236d4f76\nFS: 00007f2e9eb47700(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000001b2e421000 CR3: 000000010e6d4000 CR4: 00000000003526e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\n[] netdev_start_xmit include/linux/netdevice.h:4925 [inline]\n[] __dev_direct_xmit+0x4ef/0x850 net/core/dev.c:4380\n[] dev_direct_xmit include/linux/netdevice.h:3043 [inline]\n[] packet_direct_xmit+0x18b/0x300 net/packet/af_packet.c:284\n[] packet_snd net/packet/af_packet.c:3112 [inline]\n[] packet_sendmsg+0x4a22/0x64d0 net/packet/af_packet.c:3143\n[] sock_sendmsg_nosec net/socket.c:716 [inline]\n[] sock_sendmsg net/socket.c:736 [inline]\n[] __sys_sendto+0x472/0x5f0 net/socket.c:2139\n[] __do_sys_sendto net/socket.c:2151 [inline]\n[] __se_sys_sendto net/socket.c:2147 [inline]\n[] __x64_sys_sendto+0xe5/0x100 net/socket.c:2147\n[] do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n[] do_syscall_64+0x2f/0x50 arch/x86/entry/common.c:80\n[] entry_SYSCALL_64_after_hwframe+0x63/0xcd", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "7b8fc0103bb51d1d3e1fb5fd67958612e709f883", "status": "affected", "versionType": "git", "lessThan": "029d892b05fc5e42a1b1c0665f62cb3e4b23e6dc" }, { "version": "7b8fc0103bb51d1d3e1fb5fd67958612e709f883", "status": "affected", "versionType": "git", "lessThan": "37b6143376a578265add04f35161b257eeb84a5e" }, { "version": "7b8fc0103bb51d1d3e1fb5fd67958612e709f883", "status": "affected", "versionType": "git", "lessThan": "c96cc3d9acaca53d9a81c884c23f1224b61c829b" }, { "version": "7b8fc0103bb51d1d3e1fb5fd67958612e709f883", "status": "affected", "versionType": "git", "lessThan": "bc16fc63592c419357dd4c4d82d50762102a60ef" }, { "version": "7b8fc0103bb51d1d3e1fb5fd67958612e709f883", "status": "affected", "versionType": "git", "lessThan": "6a940abdef3162e5723f1495b8a49859d1708f79" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.12", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.12" }, { "version": "5.15.121", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.39", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.3.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.4.*" }, { "version": "6.5", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }